https://github.com/containerd/containerd
https://blog.docker.com/2018/06/containerd-buildkit-and-value-of-dockerengine/
https://github.com/opencontainers/runc
https://blog.docker.com/2017/10/notary-important-cncf/
https://github.com/docker/libnetwork
https://mobyproject.org/projects/